Core-filling compound for pneumatic tires and process of making the same.



ice.

comma portions stated,

sugar, in so utlon, said solution being owosmous,

0R PLASuC Cross Reference UNITED STATES PATENT OFFICE.

HERMAN M. SUSS, 0! FALL RIVER, MASSACHUSETTS.

CORE-FILLING COMPOUND FOB YNEUM A'QIC II RES AND PROCESS OF MAKING THE SAME.

To all whom it may concern:

Be it known that I, HERMAN M. SUs's, a citizen of the United States, residingat Fall Riven-in the county of Bristol and State of Massachusetts, have invented cer tain new and useful Improvements in Core- Filling Compounds for Pneumatic Tires and Processes of Making the Same; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful com osition of matter for -filling the cores of tires, and is chiefly designed to prolong the life and period of usefulness of pneumatic tires and to render them invuluerable and puncture-proof.

My improved composition consists of the following ingredients (iflllibillild irfi the proviz-z ca inet ue, orty 40 twenty (QOfiYzTits; brow1 1 (E20) parts; silicate of so a in Y per cent.; twenty per cent. silicate, and ten per cent.- soda, fifteen (15) parts, and glycerin, fire (5) parts by measure.

In preparing the above composition, the. glue isplaced in the water and allowed to stand until the water is absorbed. This mass is then placed in a steam-jacketed kettle and heated until the same runs freely. The brown sugar is now added and these ingredients boiled for one hour. The silicate of soda apd glycerin are now added and the mass permit-ted to boil for half an hour,

constantly agiparts;

during which the samii'is tated.

Specification of Letters Patent. Application filed July 27, 1911. Serial No. 640,765.

Patented0et.15.1912.

In using the abovenamed composition, the liquidlis pumped into the tires while hot and until the tire is full. \Vhen this filling cools it sets and forms a core that. is not affected by heat or cold, and will not de compose or melt. My improved core when prepared as above described will cool and set in about three hours and a tire equipped therewith will be found to be firm, elastic and to possess all the resiliency of a pneumatic tire and is more durable. I Having thus claim:

1. A process of producing a composition described the invention, I

which consists in placing 40 parts of cabinet glue in 20 parts of water and allowing it to remain until the water is absorbed by the -glue, then heating the so formed mass until it runs freely, then adding 9.0. parts of brown sugar and boiling the ingredients together for one hour, then adding fifteen parts of silicate of soda and five parts of glycerin to the mass'and boiling them for half an hour constantlfy agitating them during the boiling thereo 2. A core filling compound for pneumatic tires composed of cabinet glue forty parts, water twenty parts, brown sugar twenty parts, silicate. of soda fifteen parts, and glycerin five parts.

In testimony whereof I have hereunto set my hand in presence of two subscribing txammer fonfilling the cores of pneumatic tires, F 

